Litter production, decomposition and nutrient mineralization dynamics of Ochlandra setigera：A rare bamboo species of Nilgiri Biosphere Re-serve, India

Litter production, decomposition and nutrient release dynam-ics of Ochlandra setigera, a rare endemic bamboo species of Nilgiri biosphere were studied during 2011-2012 using the standard litter bag technique. Annual litter production was 1.981 t？ha-1 and was continuous throughout the year with month...

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Bibliographic Details
Published in:林业研究（英文版） 2014, Vol.25 (3), p.579-584
Main Author: Kuruvilla Thomas C.M. Jijeesh K.K. Seethalakshmi
Format: Article
Language:English
Subjects:
养分释放
凋落物
分解
垃圾产量
服务
生物圈保护区
矿化
竹种
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Summary:Litter production, decomposition and nutrient release dynam-ics of Ochlandra setigera, a rare endemic bamboo species of Nilgiri biosphere were studied during 2011-2012 using the standard litter bag technique. Annual litter production was 1.981 t？ha-1 and was continuous throughout the year with monthly variations. Litterfall followed a tri-phasic pattern with two major peaks in November, 2011 and January, 2012 and a minor peak in July, 2011. The rate of decomposition in O. setigera was a good fit to the exponential decay model of Olson （1963）. Litter quality and climatic conditions of the study site （maximum tem-perature, monthly rainfall and relative humidity） influenced the rate of decomposition. Nutrient release from the decomposing litter mass was in rank order N=Mg＆gt;K=Ca＆gt;P. Nutrient release from litter was con-tinuous and it was in synchrony with growth of new culms. Study of litter dynamics is needed before introduction of a bamboo species into degraded or marginal lands or Agroforestry systems.
ISSN:1007-662X
1993-0607
DOI:10.1007/s11676-014-0497-3